Ok, after some searching and much confusion, I found how the KDA ‘spread’ is calculated in the Halo 5 Beta.
It is:
(Kills + Assists + Medals) / Deaths
I hope this helps everyone out who was wondering!
How the heck do you calculate medals in there? Lol
LOL, ha ha… he he…lol…blam!
Medals are listed in your whatever it is called. 
lol
How do you account for negative values with that formula? Every formula I’ve seen is wrong, including this one.
KDA= kills, deaths, assists. Kills+assists/deaths
> 2533274803573038;4:
> How do you account for negative values with that formula? Every formula I’ve seen is wrong, including this one.
how do you get negative kills, assists, medals or deaths?
> 2533274942655628;5:
> KDA= kills, deaths, assists. Kills+assists/deaths
thats wrong, when i add my kills and assists then divide by my deaths the number is approximately half what the game says my kda is.
> 2533274865708979;6:
> > 2533274803573038;4:
> > How do you account for negative values with that formula? Every formula I’ve seen is wrong, including this one.
>
>
>
> how do you get negative kills, assists, medals or deaths?
>
>
>
> > 2533274942655628;5:
> > KDA= kills, deaths, assists. Kills+assists/deaths
>
>
> thats wrong, when i add my kills and assists then divide by my deaths the number is approximately half what the game says my kda is.
Maybe assist get counted as half a point? Makes sense
I’m curious how skill based ranking is determined. The only semi pro players Ive seen so far are players who played for two hours or so.
((kills + assists) x 2) /deaths = kda
343i should just say what it is already, if not here but in the game itself.
I think it is
(Kills - Deaths + ~.25*Assists)/(Games Played)
Josh Holmes says:
KDA = ((K+(A/3))-D)/games played
…Here’s the whole thing:
There’s a bug in the calculation where it doesn’t account for melee kills properly. But it’s ((K+(A/3))-D)/games played.
I thought it might have been your average ± per game. e.g on average I go +4.9.